______ volleyball here, ______ you may break the windows.

A: Please don’t tell anybody about this.  
B:_____________.

When you read English newspapers, please _______translate every word.
A do try to   B try to not    C not try to    D try not to

----Don’t forget to turn off the lights when you leave.     
----________.

__________ the window, please. It’s cold.

____talk so loudly. I’m working now.
A. No                   B. Not                  C. Don’t

—Please _______to return my book by Friday. I'll use it on Saturday.
—No, problem. I'll finish reading it on Thursday.

----________play in class !

If the green light isn’t on, ________ a minute.

–______ keep water running when you are brushing your teeth or washing your hands, Jack.
– OK. I know we must save every drop(滴) of water.
A. Why not    B. Please      C. Don’t